| #!/bin/sh |
| |
| # find the name of the log file to process, it must not start with a dash. |
| log_file="v8.log" |
| for arg in "$@" |
| do |
| if ! expr "X${arg}" : "^X-" > /dev/null; then |
| log_file=${arg} |
| fi |
| done |
| |
| tools_path=`cd $(dirname "$0");pwd` |
| if [ ! "$D8_PATH" ]; then |
| d8_public=`which d8` |
| if [ -x "$d8_public" ]; then D8_PATH=$(dirname "$d8_public"); fi |
| fi |
| [ -n "$D8_PATH" ] || D8_PATH=$tools_path/.. |
| d8_exec=$D8_PATH/d8 |
| |
| if [ ! -x "$d8_exec" ]; then |
| D8_PATH=`pwd`/out/native |
| d8_exec=$D8_PATH/d8 |
| fi |
| |
| if [ ! -x "$d8_exec" ]; then |
| d8_exec=`grep -m 1 -o '".*/d8"' $log_file | sed 's/"//g'` |
| fi |
| |
| if [ ! -x "$d8_exec" ]; then |
| echo "d8 shell not found in $D8_PATH" |
| echo "To build, execute 'make native' from the V8 directory" |
| exit 1 |
| fi |
| |
| if [[ "$@" != *--distortion* ]]; then |
| # Try to find out how much the instrumentation overhead is. |
| calibration_log=calibration.log |
| calibration_script="for (var i = 0; i < 1000000; i++) print();" |
| |
| $d8_exec --nocrankshaft --prof --logfile $calibration_log \ |
| --log-timer-events -e "$calibration_script" > /dev/null |
| t_1_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \ |
| | tail -n1 | awk -F, '{print $3}'` |
| t_1_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \ |
| | tail -n1 | awk -F, '{print $3}'` |
| n_1=`grep "timer-event\|tick" $calibration_log | wc -l` |
| |
| $d8_exec --nocrankshaft --prof --logfile $calibration_log \ |
| --log-internal-timer-events -e "$calibration_script" > /dev/null |
| t_2_start=`grep "timer-event-start,\"V8.Execute\"" $calibration_log \ |
| | tail -n1 | awk -F, '{print $3}'` |
| t_2_end=`grep "timer-event-end,\"V8.Execute\"" $calibration_log \ |
| | tail -n1 | awk -F, '{print $3}'` |
| n_2=`grep "timer-event\|tick" $calibration_log | wc -l` |
| |
| rm $calibration_log |
| |
| # Overhead in picoseconds. |
| options=--distortion= |
| options+=`echo "1000*(($t_1_end - $t_1_start) - ($t_2_end - $t_2_start)) \ |
| / ($n_1 - $n_2)" | bc` |
| echo $options |
| fi |
| |
| echo -e "plot-range,$plot_range\ndistortion,$distortion" | cat - $log_file | |
| $d8_exec $tools_path/csvparser.js $tools_path/splaytree.js \ |
| $tools_path/codemap.js $tools_path/profile.js $tools_path/profile_view.js \ |
| $tools_path/logreader.js $tools_path/tickprocessor.js \ |
| $tools_path/plot-timer-events.js -- $options $@ | less \ |
| 2>/dev/null | gnuplot > timer-events.png |